Application features: 1) Reference information: tolerance values for dimensions from 1 to 10,000 mm corresponding to ГОСТ 25346, ISO-286, ГОСТ 25348; tolerances and fits in accordance with ASME B 4.1 (ANSI B 4.1). Converter of units of length from millimeters to inches; 2) Selection of a tolerance for a size, according to a given size deviation (offers 5 tolerance options). Also selection of tolerances works for tolerances according to ASME B 4.1 (ANSI B 4.1); 3) The selection of fit will help